Was going back and forth on lift kits for my 2018 Denali. Ended up with ReadyLift 4" SST kit for 2014-2018 Silverado/Sierra. Bolted up perfectly, high quality kit. Had the dealer perform a "trim height relearn" to resolve any issues with the level of the arms for the magneride sensors and the truck drives great. 4" in the front and replaces the factory 1.25" rear block with a 3" rear lift block. Perfectly level.